摘要
本文完成了混流式模型水轮机全流道的三维非定常湍流计算。以N S方程为基础 ,补充以湍流模型并通过有限体积对控制方程进行离散 ;数值求解采用SIMPLEC算法 ;分别对标准k ε湍流模型和重整化群 (RNG)k
Numerical calculation of 3 D unsteady turbulent flow through the whole flow passage of a Francis turbine model is accomplished by solving the N S equations.Based on turbulent flow model,the control equation is discretized by finite volume method and SIMPLEC method is applied to solve the equations.The result attained by using standard k ε turbulent flow model and the result attained by using Renormalization Group(RNG) k ε turbulent flow model have been compared.
出处
《水力发电学报》
EI
CSCD
北大核心
2004年第4期102-105,共4页
Journal of Hydroelectric Engineering
关键词
动力机械工程
稳定性能预估
三维湍流计算
混流式水轮机
非稳定流
power machinery engineering
stable performance prediction
three dimensional turbulent flow
Francis turbine
unsteady flow
